What Happens When You Take The Sim Card Out Of An Iphone 4s?

If I Take The Sim Card Out Will I Still Be Able To Use My IPhone? What Features Will Work And What Features Won't? Will My Contacts/Notes/Texts Etc. Be Erased? Can I Still Get On The Internet If I Have Wi-Fi? Can I Still Use Maps On My IPhone?

You will be able to use Safari, or anything that requires internet if you have Wi-Fi. Most app will work. And yes you can use maps, as long as you have Wi-Fi. About the contacts. I don't know…